I couldn’t miss Percy’s fifteenth birthday,” Poseidon said. “Why, if this were Sparta, Percy would be a man today!” "That’s true,” Paul said. “I used to teach ancient history.” Poseidon’s eyes twinkled. “That’s me. Ancient history.

I couldn’t miss Percy’s fifteenth birthday,” Poseidon said. “Why, if this were Sparta, Percy would be a man today!” "That’s true,” Paul said. “I used to teach ancient history.” Poseidon’s eyes twinkled. “That’s me. Ancient history.